A. In what line did the mistake occur? Justify the answer. B. What are the correct answers?

Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE: 1. Give the measures of the complement and the supplement of an angle measuring 35°.
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A. In what line did the mistake occur? Justify the answer.

B. What are the correct answers?

Jose was asked to solve the following trigonometric equation for 0 < x < 27.
sin(x) – cos(2a) = 0
Jose worked the problem the following way:
Line 1: sin(æ) – (1– 2 sin? (x)) = 0
Line 2: sin(x) – 1+2 sin? (x) = 0
Line 3: 2 sin? (x) + sin(x) – 1 = 0
Line 4: (2 sin(x) +1) (sin(x) – 1) = 0
Line 5: sin(x) = –3, sin(x) = 1
: 1
-
77 11T
Line 6: x
6
2
Transcribed Image Text:Jose was asked to solve the following trigonometric equation for 0 < x < 27. sin(x) – cos(2a) = 0 Jose worked the problem the following way: Line 1: sin(æ) – (1– 2 sin? (x)) = 0 Line 2: sin(x) – 1+2 sin? (x) = 0 Line 3: 2 sin? (x) + sin(x) – 1 = 0 Line 4: (2 sin(x) +1) (sin(x) – 1) = 0 Line 5: sin(x) = –3, sin(x) = 1 : 1 - 77 11T Line 6: x 6 2
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